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Finding the Fourth Proportional to 130,161.61, 195,242.42 and 67,953.61

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Solution

The fourth proportional to 130,161.61, 195,242.42 and 67,953.61 is: 101,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,161.61 : 195,242.42 = 67,953.61 : x
  2. Step 2: Convert to fraction form
    130,161.61/195,242.42 = 67,953.61/x
  3. Step 3: Cross multiply
    130,161.61x = 195,242.42 × 67,953.61
  4. Step 4: Simplify right side
    130,161.61x = 13,267,427,264.14
  5. Step 5: Solve for x
    x = 13,267,427,264.14/130,161.61
  6. Step 6: Final answer
    x = 101,930.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.